What was found
THE SUBJECT CDP SEAL IS AFFECTED BY MANY “RULER TYPE” LINEAR FPI INDICATIONS ON THE SEAL TEETH. THE INDICATIONS ARE PRESENT 360 DEGREES AROUND THE SEAL, ON ALL EXCEPT THE FORWARDMOST SEAL TOOTH. MANY OF THE INDICATIONS DO NOT APPEAR TO ORIGINATE FROM THE TIPS OF THE SEAL TEETH, WITH THE INDICATIONS BEING LIMITED TO THE TEETH FORWARD FACES. THE INDICATIONS ARE VISIBLE UNDER WHITE LIGHT. BINOCULAR INSPECTION WAS CARRIED OUT. NO CRACKING ASSOCIATED WITH THE INDICATIONS WAS OBSERVED (FOR THE FEW LOCATIONS VIEWED UNDER BINOCULAR INSPECTION). APPLYING UV LIGHT WHILE VIEWING AN INDICATION UNDER BINOCULAR INSPECTION SHOWED THAT THE DEFECT SEEMED TO CONSIST OF MANY VERY SMALL NON-LINEAR FPI INDICATIONS. COATING REMOVAL PROCESSES WERE CARRIED OUT PRIOR TO THE DESCRIBED INDICATIONS BEING OBSERVED. DR# 02266111-A WAS REJECTED BY THE OEM. ‘THE CONDITION IDENTIFIED DEPARTS FROM THE INSTRUCTION FOR CONTINUED AIRWORTHINESS (ICA). THE CONDITION HAS BEEN EVALUATED AND A RECOMMENDATION TO DEPART FROM THE ICA CANNOT BE PROVIDED BECAUSE THE CONDITION COULD NOT BE SUBSTANTIATED. FMD IS SUBMITTED. TO BE REPORTED I.A.W AMC 20-8A(J) ANY DEFECT IN A LIFE-CONTROLLED CRITICAL PART THAT CAUSES ITS RETIREMENT BEFORE THE COMPLETION OF ITS FULL SERVICE LIFE.